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Building & Construction

At DuPont, we're focused on dynamic science that generates real-world solutions. That's why DuPont is at the forefront of building science, with brands you depend on, like Tyvek®, SentryGlas®, Corian® solid surfaces, Zodiaq® quartz surfaces and Kevlar®.

Electronics

With a deep understanding of materials science, a commitment to technology leadership, a wide range of process expertise and a long history of innovation, DuPont offers the industry’s broadest array of high performance electronic materials.

Energy

With the world’s population projected to surpass 9 billion by 2050, now is the time to prepare for a secure energy future. We invite you to collaborate with our global teams to find science-driven, sustainable energy solutions.

Food & Beverage

At DuPont, we're putting science to work in the food and beverage industry — improving the nutritional value of food, ensuring food safety, and finding smart, sustainable solutions to feed a growing population.

Health Care & Medical

DuPont offers a broad range of healthcare products and high-performance materials that help create safer healthcare environments, contribute to innovations in medical devices and help protect the health of patients and healthcare providers worldwide.

Marine

Mining

DuPont Mining products and services help improve extraction, personal protection, safety and more. Processing and transporting of highly abrasive and corrosive, bitumen, slurry and tailings require the innovation and technology that DuPont can provide.

Safety & Protection

In the face of growing global industrialization, DuPont takes safety and protection seriously. Learn how DuPont continues to improve upon its materials and workplace safety performance to help keep all of us safe in the toughest conditions.

DuPont™ Nucrel® ethylene acid copolymer resin provides an outstanding, chemically-resistant metal bond, making it a reliable, cost-effective foil adhesive for a range of applications. Nucrel® bonds to the oxide layer on the aluminum and provides strong bonds that are resistant to attack by mild to moderate acids and bases.

Versatile Performance Properties

Besides foil, Nucrel® can adhere to paper in extrusion coating, nylon in coextrusion, and can be extruded or injection molded at slightly lower processing temperatures than polyethylene (PE).

Nucrel® is also an excellent heat sealant, with hot tack strength and seal through contamination properties that allow for reliable heat seals at high packaging machine speeds. Other performance properties include toughness, light weight and durability in aggressive chemical (e.g., acetic acid) environments.

Proven in a Variety of Applications

As a foil adhesive layer, Nucrel® is used in:

Juice and aseptic milk packaging, where it resists mild acids in the liquids for a shelf life of up to one year

Condiment sachets, where it protects both sides of the foil from aggressive acids like vinegar found in ketchup and other condiments

Snack structures such as biscuit can liners

Toothpaste tubes

Typical Grades include: Nucrel® 3990, 30907, 0411HS, 0910HS

As a heat sealant or heat sealant backing layer, Nucrel® is used in:

Spice oil sachets, where it provides fast, low-temperature, seal through oil contamination, and resistance to swelling

Nucrel® is also used as a coextrusion interlayer between DuPont Surlyn® ionomer resin and PE or other materials for processed meat packaging.

The Chemistry of Nucrel®

Nucrel® resins are branched copolymers of ethylene and methacrylic or acrylic acids. Acid side chain branches bring unique functionality to these highly polar resins, while long chain branches make these resins easy to use in producing blown and cast films, as well as extrusion coatings and laminations.

Nucrel® HC (High Clarity) film grades provide very low haze and high gloss for applications which require see-through packaging.

The Benefits of Nucrel®

For converters with extrusion capabilities, Nucrel® is a cost-effective foil adhesive solution. It allows for high-speed extrusion coating and lamination, resulting in fewer package failures, which helps reduce waste. And unlike chemical primers and adhesives, Nucrel® resins provide adhesion without the inconvenience and rate limitation of applying and drying an adhesive solution.